<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图区域 -->
        <el-card>
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear='getGoodsList'>
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddpage">添加商品</el-button>
                </el-col>
            </el-row>

            <!-- table表格区域 -->
            <el-table :data='goodslist' border stripe>
                <el-table-column label="#" type="index"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格（元）" prop="goods_price" width="95px"></el-table-column>
                <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
                <el-table-column label="创建时间" prop="add_time" width="180px">
                    <template slot-scope="scope">
                        {{scope.row.add_time | dateFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="130px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="addMove(scope.row.goods_id)"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区域 -->
            <el-pagination
             @size-change="handleSizeChange"
             @current-change="handleCurrentChange"
             :current-page="queryInfo.pagenum"
             :page-sizes="[5, 10, 20, 50]"
             :page-size="queryInfo.pagesize"
             layout="total, sizes, prev, pager, next, jumper"
             :total="total" background>
            </el-pagination>

            <!-- 添加编辑对话框 -->
            <el-dialog
             title="商品名称"
             :visible.sync="rolesdialogVisible"
             width="50%"
             @close="roleshandleClose">
                 <el-form :model="rolesForm" :rules="rolesFormRules" ref="rolesFormRef" label-width="70px">
                    <el-form-item label="商品名称" prop="goods_name">
                      <el-input v-model="rolesForm.goods_name"></el-input>
                    </el-form-item>
                </el-form>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="rolesdialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="rolesFormAdd">确 定</el-button>
                </span>
            </el-dialog>
        </el-card>
    </div>
</template>

<script>
export default {
    data() {
        return{
            //查询对象
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 5
            },
            //商品列表
            goodslist: [],
            //总数据条数
            total: 0,

            rolesdialogVisible: false,
            rolesForm: {},
            rolesFormRules: {
                goods_name:[
                    {required: true,message:'请输入商品名称',trigger:'blur'},
                ]
            }

        }
    },
    created() {
        this.getGoodsList()
    },
    methods: {
        //根据分页获取对应的商品列表
        async getGoodsList() {
            const {data: res} =await this.$http.get('goods',{
                params:this.queryInfo
            })

            if(res.meta.status !== 200) {
                return this.$message.error('获取商品列表失败！')
            }

            // this.$message.success('获取商品列表成功！')
            // console.log(res.data);
            this.goodslist = res.data.goods
            this.total = res.data.total
        },
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        handleCurrentChange(newpagenum) {
            this.queryInfo.pagenum = newpagenum
            this.getGoodsList()
        },
        //点击按钮，删除商品
        async removeById(id){
            const confirmResult=await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err =>err)

            if (confirmResult !=='confirm') {
                return this.$message.info('取消删除！')
            }

            const {data: res} =await this.$http.delete(`goods/${id}`)
            console.log(res);
            if(res.meta.status !== 200) {
                return this.$message.error('删除商品失败！')
            }
            this.$message.success('删除商品成功！')
            this.getGoodsList()
        },
        //添加商品,点击按钮跳转到指定的add页面
        goAddpage() {
            this.$router.push('/goods/add')
        },
        //点击按钮，出现对话框
        async addMove(id) {
            const { data: res } = await this.$http.get('goods/' + id  )
            console.log(res);
            if (res.meta.status !== 200) {
                return this.$message.error('查询商品信息失败！')
            }

            this.rolesForm = res.data
            this.rolesdialogVisible = true
        },
        // 监听修改商品对话框的关闭事件
        roleshandleClose() {
          this.$refs.rolesFormRef.resetFields()
        },
        //修改商品信息并提交
        rolesFormAdd() {
            this.$refs.rolesFormRef.validate(async valid => {
            if (!valid) return

            const {data: res} = await this.$http.put('goods/' + this.rolesForm.goods_id,{
                goods_name: this.rolesForm.goods_name
            })
            console.log(res);
            if (res.meta.status !== 200) {
              return this.$message.error('更新商品信息失败！')
            }

                // 关闭对话框
            this. rolesdialogVisible = false
            // 刷新数据列表
            this.getGoodsList()
            // 提示修改成功
            this.$message.success('更新商品信息成功！')
          })
        }
    }
}
</script>

<style lang="less" scoped>

</style>